<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>计算器</title>
    <link rel="shortcut icon" href="favicon.ico" />
    <link rel="stylesheet" href="index.css">
    <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
    
</head>
<body>
    <div id="app">
        <div class="calculator">
          <div class="result" style="grid-area: result">
            {{ equation }}
          </div>
      
          <button style="grid-area: ac" @click="clear">AC</button>
          <button style="grid-area: plus-minus" @click="calculateToggle">±</button>
          <button style="grid-area: percent" @click="calculatePercentage">%</button>
          <button style="grid-area: add" @click="append('+')">+</button>
          <button style="grid-area: subtract" @click="append('-')">-</button>
          <button style="grid-area: multiply" @click="append('×')">×</button>
          <button style="grid-area: divide" @click="append('÷')">÷</button>
          <button style="grid-area: equal" @click="calculate">=</button>
      
          <button style="grid-area: number-1" @click="append(1)">1</button>
          <button style="grid-area: number-2" @click="append(2)">2</button>
          <button style="grid-area: number-3" @click="append(3)">3</button>
          <button style="grid-area: number-4" @click="append(4)">4</button>
          <button style="grid-area: number-5" @click="append(5)">5</button>
          <button style="grid-area: number-6" @click="append(6)">6</button>
          <button style="grid-area: number-7" @click="append(7)">7</button>
          <button style="grid-area: number-8" @click="append(8)">8</button>
          <button style="grid-area: number-9" @click="append(9)">9</button>
          <button style="grid-area: number-0" @click="append(0)">0</button>
      
          <button style="grid-area: dot" @click="append('.')">.</button>
        </div>
      </div>
      <script src="index.js"></script>
</body>
</html>